Add cloud_print to the GN build.

cloud_print/BUILD.gn

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//testing/test.gni")
 
+group("cloud_print") {

[Dirk Pranke, 2015/10/13 04:38:32]

Do you mean for this group to be useful on non-win builds as well? Maybe parts
of this need is_win checks (or asserts?)

+  public_deps = [
+    "//cloud_print/service/win:cloud_print_service",
+    "//cloud_print/service/win:cloud_print_service_config",
+    "//cloud_print/service/win:cloud_print_service_setup",
+    "//cloud_print/virtual_driver/win/install:virtual_driver_setup",
+    "//cloud_print/virtual_driver/win/port_monitor",
+  ]
+
+  # When compiling 32-bit, also reference the 64-bit driver for installing on
+  # 64-bit systems.
+  if (target_cpu == "x86" && current_cpu == "x86") {
+    public_deps += [ "//cloud_print/virtual_driver/win/port_monitor(//build/toolchain/win:x64)" ]
+  }
+}
+
 test("cloud_print_unittests") {
   sources = [
     "service/service_state_unittest.cc",
   ]
 
   deps = [
     "//base",
     "//base/test:run_all_unittests",
-    "//cloud_print/service:cloud_print_service_lib",
+    "//cloud_print/service:lib",
     "//testing/gmock",
     "//testing/gtest",
   ]
 
-  # TODO(GYP)
-  # if (is_win) {
-  #  sources += [
-  #    "service/win/service_ipc_unittest.cc",
-  #    "virtual_driver/win/port_monitor/port_monitor_unittest.cc",
-  #  ]
-  #
-  #  deps += [ "virtual_driver/win:gcp_portmon_lib" ]
-  #}
+  if (is_win) {
+    sources += [
+      "service/win/service_ipc_unittest.cc",
+      "virtual_driver/win/port_monitor/port_monitor_unittest.cc",
+    ]
+    deps += [ "//cloud_print/virtual_driver/win/port_monitor:lib" ]
+    libs = [ "secur32.lib" ]
+  }
 }